3.4l v6 with LZE 3500 VVT heads??!?! - Page 3

MilzyZ34 · 02-29-2008, 01:21 PM

Quote:

Originally Posted by WhiteV6

Funny you ask. hell no they don't. The day you tell me what bore your bench uses is the day I take any of your numbers past .350 lift seriously. Funny that it is the exact point that the valve is now past the combustion chamber. hmmm.

Why is it that V8 heads with over 2" intake valves barely flow better, or in some cases equal to your 3400 stage 3 head? Doesn't add up.

For those that don't know flowbenches, you need to simulate the engine, with the cylinder bore. This shrouds the valve, restricting flow. If you run an open box or a much larger bore, you create less restriction, which boosts flow numbers. I did testing on a honda 450 TRX quad head, by flipping the head around on the bench. This put the intake valves dead center. Flow increased considerably.

We use the correct bore size for our flowbench work, so stop making excuses why you can't keep up. If the numbers were flawed after .350" lift as you claim, wouldn't the 3500 heads show the same trend in our testing? Or are you claiming we flow the heads in different ways to skew the numbers?

Our Stage 3 3800 Supercharged heads use 1.90" intake valves, and flow 245 cfm max. Our Stage 3 3400 heads have smaller valves, yet flow considerably more. there is more to headflow than just valve diameter.

WhiteV6 · 02-29-2008, 01:54 PM

Quote:

Originally Posted by MilzyZ34

We use the correct bore size for our flowbench work, so stop making excuses why you can't keep up. If the numbers were flawed after .350" lift as you claim, wouldn't the 3500 heads show the same trend in our testing? Or are you claiming we flow the heads in different ways to skew the numbers?

Our Stage 3 3800 Supercharged heads use 1.90" intake valves, and flow 245 cfm max. Our Stage 3 3400 heads have smaller valves, yet flow considerably more. there is more to headflow than just valve diameter.

Who cares about iron head 3800 heads? We all know they suck for flow.

http://www.airflowresearch.com/205_mongoose.php

"AFR’s LS1 cylinder head offers unmatched flow performance (298 CFM at .600lift) and features 2.020 intake and 1.600 exhaust valves with AFR’s iron ductile interlocking valve seats"

Congrats, you are basically CNC ported LS1 head flow with your stage 3 3400 heads. Your stage 2 heads outflow my street strip, so why can't you make more power?

Your intake manifolds don't support 290CFM, so I think you wasted your time.

MilzyZ34 · 02-29-2008, 02:03 PM

Quote:

Originally Posted by WhiteV6

Who cares about iron head 3800 heads? We all know they suck for flow.

http://www.airflowresearch.com/205_mongoose.php

"AFR’s LS1 cylinder head offers unmatched flow performance (298 CFM at .600lift) and features 2.020 intake and 1.600 exhaust valves with AFR’s iron ductile interlocking valve seats"

Congrats, you are basically CNC ported LS1 head flow with your stage 3 3400 heads. Your stage 2 heads outflow my street strip, so why can't you make more power?

Your intake manifolds don't support 290CFM, so I think you wasted your time.

I think I covered the power difference in my last post.

We'll just see what this year brings, but I'm looking forward to the challenge.

Redog · 02-29-2008, 02:36 PM

Come on guys.

You are both giving us a lot of infomation and we like what we are learning, but be nice. I don't wanna have to close this thread

WhiteV6 · 02-29-2008, 02:41 PM

http://24hoursoflemons.com/

How about that?

WhiteV6 · 02-29-2008, 02:41 PM

Yeah, im sure we can resolve our differences over some racing.

MilzyZ34 · 02-29-2008, 02:51 PM

Quote:

Originally Posted by WhiteV6

Yeah, im sure we can resolve our differences over some racing.

sounds like fun to me.

blueolds01 · 02-29-2008, 02:55 PM

well im sold!
name the time and place you guys are goin at it and ill be there to watch!

Midgear · 02-29-2008, 06:05 PM

holy crap, when i said some research and comparison is in order, these guys took it seriously. this is great! didnt mean to cause an argument though

Bad99Olds · 02-29-2008, 07:02 PM

competition breeds innovation, which breeds perfection... good job midgear, you may be the cause of the perfect all motor 3400 engine.. haha

BlackJack · 02-29-2008, 08:47 PM

Quote:

Originally Posted by Midgear

holy crap, when i said some research and comparison is in order, these guys took it seriously. this is great! didnt mean to cause an argument though

Nice part is, you don't have to go looking for the research, it's being brought to you.

oldskid33 · 02-29-2008, 11:19 PM

lol all this take of CAI and exhaust

i better get on these haha but all to get to 105 faster? how do u get rid of the damn speed limiter cuz i know that engine can go faster

oldskid33 · 02-29-2008, 11:21 PM

a Rave u Better tape it .

SUNDAY SUNDAY SUNDAY kings of alero performance square off. shall be a great race!!

WhiteV6 · 02-29-2008, 11:40 PM

http://www.mpracing.org/store/index....&productId=107

hehe, product ID 107. Thats my favorite number.

Midgear · 02-29-2008, 11:59 PM

Quote:

Originally Posted by BlackJack

Nice part is, you don't have to go looking for the research, it's being brought to you.

x2 <enter random text here to have enough characters to make the post>

chevymuscle218 · 01-13-2009, 10:21 PM

hate to dig up an old thread, but was there ever any racing? Haha you guys should go on pinks. Also, when you do a 3500 top swap, do you have to use the manifold off the 3500 or just the lower?

WhiteV6 · 01-13-2009, 10:40 PM

3500 heads, lower, upper. 3500 lower only bolts to the 3500 heads. The upper can go on either 3400 or 3500 lower however but that is a plenum swap, not a 3500 top end swap.

My car hasn't had an engine or transmission in it for almost 2 years now so no, I wasn't racing anyone. Milzy can tell you what he did for racing. I don't have the time or money to do personal stuff. My customers however, have had some great results from 2008 and this year should be even better now that more are getting their builds together.

kwhauck · 01-13-2009, 10:41 PM

from my understanding your options are just the 3500 UIM, or the entire 3500 top end (head, LIM, UIM)

WhiteV6 · 01-13-2009, 11:06 PM

Yup, or the easier to deal with 3500 heads, 3500 lower, 3400 upper. Looks like stock other than the coolant temp sensor is bolted to the rear head instead of the lower intake.

kwhauck · 01-13-2009, 11:12 PM

so did we ever clear up the issues

which is better extreme ported 3400 heads or extreme ported 3500 heads,

and for me specifically 15-25psi supercharged with a really high lift cam and a bunch of other stuff......which would be better, i haven't ordered my pistons yet, so the compression ratio isn't a big deal.......